The Belfast Petroglyphs contain numerous rock carvings of unknown figures within basalt boulders facing Willow Creek near Litchfield, California. They are of Maidu, Pit River, & Paiute Indian origin & estimated at around 2,000 years old. Placed under the national register of historic places, these petroglyphs are protected by the federal government & it is a violation of federal law to deface them.